import matplotlib.pyplot as plt
import numpy as np
import pandas as pd 

# a = pd.read_csv('./learn/./files/test02.csv', parse_dates=['trade_time'], index_col='trade_time')[['open','close','high','low']]
a = pd.read_csv('./learn/./files/history_A_stock_k_data.csv', parse_dates=['date'], index_col='date')[['open','close','high','low']]
a.plot()
plt.show()
